CODEWITHSUNDEEP
android
Nikhil Lamba
Nikhil Lamba

Reputation: 603

Unable to add dialog when press my own softkeyboard key

I get the following android exception when I try to open a dialog. when i am press my own SoftKeyboard key how can I fix this problem?

BadTokenException: Unable to add window -- token null is not for an application
com.example.android.softkeyboard.SoftKeyboard.diqalog(SoftKeyboard.java:759)
com.example.android.softkeyboard.SoftKeyboard.onKey(SoftKeyboard.java:526)
android.inputmethodservice.KeyboardView.onModifiedTouchEvent(KeyboardView.java:1252)

Upvotes: 1

Views: 847

Answers (1)

srgtuszy
srgtuszy

Reputation: 1548

First of all, you cannot present a dialog from a remote service, you can only do so from within a running Activity, that's why you're getting a BadTokenException. But there are solutions to this problem:

1) Present an Activity with Theme.Dialog theme:

<activity
      android:name="com.srgtuszy.activity"
      android:theme="@android:style/Theme.Dialog"
      />

And start the activity as a new task:

Intent intent = new Intent(context, MyActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);

This way, you'll get an activity which will look just like a dialog.

2) Present an empty and transparent Activity and show an AlertDialog from within the activity

Declare and start the activity in manifest just as before, but use a transparent theme:

  <style name="Theme.Transparent" parent="android:Theme">
    <item name="android:windowIsTranslucent">true</item>
    <item name="android:windowBackground">@android:color/transparent</item>
    <item name="android:windowContentOverlay">@null</item>
    <item name="android:windowNoTitle">true</item>
    <item name="android:windowIsFloating">true</item>
    <item name="android:backgroundDimEnabled">false</item>
  </style>

In the activity, override the onCreate() method and don's call setContentView() and present the AlertDialog:

@Override
protected void onCreate(Bundle savedInstanceState)
{
     super.onCreate(savedInstanceState);
     Context context = this;
     AlertDialog.Builder dialog = new AlertDialog.Builder(context);
     dialog.setTitle("Hello!");
     dialog.show();
}

This is a more hacky approach, but in this way you can show a dialog to the user without dismissing the input method, you can use to to present edit options for instance.

If you just want to notify the user about a certain event, consider using Notifications, they won't distract the user and pollute the UI.

Upvotes: 1

Related Questions